Dual image computer display controller
US5977933A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1996 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Jan 11, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display control system for a portable computer drives, from a single frame buffer, both a built-in flat panel (LCD type) display as well as a separate external CRT display or an NTSC/television monitor. Either identical or different images may be displayed simultaneously on the CRT display or television and on the flat panel display. Independent clocking is provided to each display to enable this simultaneous display of different images as well as simultaneously display of identical images. The display control system is suitable for use with a wide variety of CRT displays and flat panel displays by means of internal programmable controls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.